DNA Flashcards
(5 cards)
1
Q
What bonding holds DNA together?
A
Hydrogen
2
Q
What bonding occurs between DNA bases?
A
Phosphodiester
3
Q
Why does DNA polymerase work in opposite directions?
A
DNA strands are anti parallel
4
Q
What is meant by semi-conservative replication? (2 marks)
A
- two identical copies are made
- both containing one orginal strand and one new strand
5
Q
Explain why DNA replication is semi-conservative and important to the body? - 2 marks
A
- new DNA molecules contains one original strand of DNA
- ensures genetic continuity
